US1087755A - Wire couch fabric. - Google Patents

Description

C. H. GAIL.

WIRE GOUCH FABRIC.

APPLIGATION PILED JAN. 13, 1913.

1087,755. Patentea Feb. 17,1914.

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CHARLES H. GAIL, OF CHICAGO, ILLINOIS.

WIRE COUCH FABRIC.

Application filed January 13, 1913.

To aZZ 'Lu/zlom may con/cem:

Be it known that I, Ci-rAnLEs H. GAIL, a citizen of the lUnited States, residing at Chicago, in the county of Cook and State of lt'llinois, have invented certain new and useful lniprorements in lVire Couch Fabrics, of which the following is a speciiication.

My invention relates to improvements in Wire couch fabrics, and has for one of its objects to provide, for beds or couches, a fab 1ic that is practically inextensible but flexiblc in all directions and readily foldable longitudinally and transversely.

Another object of my invention is to provide, in a fabric of this character, composite members or links of such nature that most of the metal of which they are composed lies in substantially the shortest path between points upon which strain is imposed so that the links will not materially change their form or configuration when strained beyond the bending point of the wires of which they are made, thereby to preserve the original dimensions of the fabric without elongat-ion, buckling, or sagging in either direction.

Another object of my invention is to provide a fabric of this general character in which the longitudinal marginal edges are in substantially straight lines.

Still another object of my invention is to provide a fabrc composed of a small variety of parts thereby to simplify t-he structure and to contributc toward clieapening the operation of assembling the parts.

A further object of my invention is to provide a fabric wherein each part is of substantially symmetrical shape, adapted easily to be made by automatic machinery, and with each part having therein only simple bends which do not unduly strain the wire, so that relatively cheap, or low-grade wire will be used without sacrifice of strength.

Another object is to so interrelate the parts that each part is positioned against displaeement or detrimental change of shape under the effect of heavy usage.

Other and further objects of my invention will become readily apparent to persons skilled in the art from a consideration of the specification when taken in conjunction with the drawing, wherein-M Figure 1 is a plan view of a piece of the fabric, showing one sel'vage edge; Fig. 2 is Specificaton of Letters Patent.

latented llfeha ilr, 19111.

serial no. 741,664.

an enlarged perspectire view of s `feral of the links.

In both views the same reference characters are employed to indicate similar parts.

My fabric is made up of relatively elongated, longitudinallj7 disposed members 5; generally similar transversely disposed members 6; and intermediate connecting links 7 of generally rhombic or diamond shape.

The members 5 are made, preferably, by centrally folding a Wire upon itself to form a rather elongated lJ-shaped structure having a closed end and substantially parallel straight limbs with hooks 8 in their free ends. These are the links of the first order. The interinediate connectors or members 7 are the links of the second order. They are each made by hending a wire into a Shape substantially that of a rhoinb, the links being quadrangular in outline and having its free proximate ends formed into hoeks 0. The hooks 9 of links 7 enga ge the closed end 10 (which in this respect may be considered as a hook) of the adjacent link 5, and the hooks 8-8 of member 5 eno-age the angle 11 of the connector 7. The transrerse links or tie wires 6 of the third order are provided with hooks 12 which engage the angles 13-13 of the connectors. The selrage connectors 14, preferably, are triangular in outline, so as to provide, with the links a substantially straight selrage edge.

It will be obser'ved that when strain is imposed upon the fabric, as by a superimposed weight, the resultant lines of strani will be in substantially the plane of the body portions of the quadrangular connector members. lt is also to be observed that the strain passes through the relatively elongated links in linear directions. There is therefore no substantial strain imposed upon any member of the fabric in such manner as to distort, or tend to distort, or change the configuration of, any of them. For the reason that the members are originally of that shape best calculated to withstandthe strani, the body portions whereof are located in the shortest path between adjacent points at which other members are connected, there will be no material eXpa-nsion of the fabrc to cause slack or buckling. All parts of the upper surface of the fabric will remain substantially in a single plane When relieved of the Weight that may be imposed upon it. This is due to the fact that there is no extension of the parts 01' any of them When loaded to their load-bearing capacity.

In order to provide a smoother even top surface, the hooks, Which are located at t-he terminals of each of the three members of the structure, are downturned and therefore the top surface of the fabric has no raW edges.

The terminal links 5 of the structure are connected to the usual closed helical Springs These Springs exert a considerable resilient tension upon the respective chains of the fabric, composed of the lono'itudinally extending links 5 and the oonnectors 7, and serve to draW each of the ohains back into its horizontal position after the Weight that may have been placed on the fabric has been removed.

GWing to the fact that each the elemente of my structure is adapted not to be stretched or elongated by superimposed Weight, the Springs 15 are adapted to bring back into the normal plane each of the chains or lono'itudinally extending series of links.

W'hile I have herein shoWn a single embodiment of my invention for the purpose of Clear disclosure, it is evident that many changes may be made Within the structure Without departing from the spirit and scope of the appended claims; for instance, the links 5 may be made of a single Wire, as are the links 6, and other changes may naturally Suggest themselves to persons skilled in the art Within the spirit of my invention and Within the scope of the appended claims.

V] hat I claim is:

1. A Wire fabric composed of three sets of parts, namely longitudinally extending Wir-e links having end hooks, transversely extending Wire links having end hooks, and quadrangular Wire connectors, each said connector having tWo end hooks at one anglV embraced by an end hook of one of the proximate links and its remaining angles receiving end hooks of the remaining proximate links, the sides of said connector iying in substantially the shortest paths between the points of strain imposed on said links.

2. A Wire fabric composed of a plurality of chains of alternate similar members of the first and second orders, each member of the first order comprising a Wire link having its ends bent back to form engaging parts or hooks, and each member of the second order comprising a single-Wire link having hooks at its tWo ends brought close together, said hooks jointly enga-god by an end hook of one of the proximate members of the first order, and the opposite portion of the member of the second order engaged by an end iook of the remaining proximate member of the first order; and Wire tie links connecting the members of the second order of transversely adjoining chains.

3. A Wire fabric comprising a plurality of chains of alternately similar members of the first and second orders, each member of the first order being a relatively long narroW link of Wire doubled and bent to provide closed end and two substant-ially parallel straight linibs each having a hook at its free end; each member of the second order comprising a rhombic Wire link With hooks at its ends lying side by side at one angle, the closed end of each meni. er of the first order eng-aging both hooks of a member of the second order and having its end hooks engaging the opposite angle of another member of the second order; and tran verse links having end hooks engaging the remaining angles of members of the second order lying in adjacent chains.

In testimony Whereof I hereunto set my hand in the presence of two Witnesses.

CHARLES E. GAIL.

In the presence of- Fomn Bern, Many F. ALLEN.

Copies oi this patent may be obtaine for five cents each, by addressing the Commlssoner of Patenti,

Washington, D. C3'

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